By refraction at beam splitting or combining surface

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Description

Number of patent applications / Date published

359639000

By refraction at beam splitting or combining surface

18

20160109716

COLOR SPLITTER, METHOD OF MANUFACTURING THE SAME, AND IMAGE SENSOR INCLUDING THE SAME - A color splitter, a method of manufacturing the same, and an image sensor including the same are disclosed. The color splitter includes: a color separation element that is formed of a sol-gel material having a high refractive index and exhibits a color separation characteristic; and a low-refractive index layer that has a space in which the color separation element is disposed.

04-21-2016

20120182622

SYNTHESIZED SILICA GLASS FOR OPTICAL COMPONENT - The present invention provides a synthetic silica glass for an optical member in which not only a fast axis direction in an optical axis direction is controlled, and a birefringence in an off-axis direction is reduced, but a magnitude of a birefringence in the optical axis direction is controlled to an arbitrary value, such that an average value of a value BR cos 2θ

07-19-2012

20100208356

ACHROMATIC FLAT TOP BEAM SHAPING - There is provided an optical system and method for shaping a polychromatic light into a substantially uniform profile beam along a first axis. A polychromatic divergent light with having multiple wavelength components is provided with a dispersion of divergence. A collimation optic collimates the polychromatic divergent light. A shaping lens shapes the collimated beam into a shaped beam with a nearly uniform profile along the first axis, the dispersion of divergence causing a deviation from uniformity of the nearly uniform profile. A focusing optic focuses the shaped beam. A combination of the collimation and focusing optics shows a chromatic focal shift that compensates for said dispersion of divergence, so as to reduce the deviation from uniformity to obtain a profile with a substantially uniform intensity along the first axis, for all of said multiple wavelength components.

08-19-2010

20100118411

INTEGRATOR AND ILLUMINATING APPARATUS USING THE INTEGRATOR - Provided is a small size optical system having functions of a luminous flux splitting optical system or those of a luminous flux integrating optical system and functions of a fly's eye integrator. The integrator is provided with two surfaces. A first surface (

05-13-2010

20100110558

COMPOSITE OPTICAL DIVIDING DEVICE - A composite optical-dividing component receives a light beam. There are mixed-bands in the light beam. The composite optical-dividing component includes a first optical-patch and a second optical-patch. The first optical-patch has multiple micro-structural lenses in an identical shape. Each micro-structural lens receives the light beam and generates a deflecting light in some degrees of condense. The second optical patch has multiple polygonal structures. Some polygonal structures are periodic and provide the function of deflection in order to receive the deflecting light and then separate multiple bands from the beam. In accordance with wavelengths in multiple bands, the bands are emitted to a target area (RGB) in a plane, respectively. Another part of the polygonal structures has the capability of light refraction, which receives the deflecting light and deflects and the rest of the bands in the beam. And it is emitted to a target area (W) in a plane.

05-06-2010

20130088785

DISPLAY DEVICE AND METHOD FOR FORMING THE SAME - A display device has a display element that makes a display and a viewing angle widening member that is provided on the viewing side of the display element, and that causes light to exit in a condition in which the angle distribution is widened relative to before incidence of the viewing angle widening member to the display element. The viewing angle widening member includes a base material, and a refractive index change layer formed over the base material. The refractive index change layer includes a plurality of high refractive index portions and low refractive index portions having a refractive index that is lower than the refractive index of the high refractive index portions. Each of the plurality of high refractive index portions includes a light emission surface on the base material side, and a light incidence surface having a larger surface area than that of the light emission surface on the opposing side of the base material side. The refractive index change layer faces the display element. The base material is disposed on the display side.

04-11-2013

20090323194

COMPOSITE LIGHT DIVISION DEVICE AND IMAGE APPARATUS USING THE SAME - A composite light dividing device is provided. The composite light dividing device receives a light beam mixed by lights of at least two wavebands. The composite light dividing device includes a refracting/diffracting unit, and a refracting unit. The refracting/diffracting unit is adapted for receiving the light beam and condensing the light beam into a condensed light beam, and dividing the condensed light beam at a deflection direction to obtain the lights of the wavebands. The refracting unit is adapted for deflecting the divided lights of the wavebands for outputting them from a specific direction. The composite light dividing device for example can be used in an image apparatus, and the divided lights of the wavebands can serve as primary color lights of the pixel colors.

12-31-2009

20120062999

DUAL VIEW DISPLAY SYSTEM - A dual view display system that displays two different images in different directions using a single display device. The dual view display includes a first optical element overlaying a first portion of the pixels and configured to direct light emitted from the first portion of the pixels toward a first direction, a second optical element overlaying a second portion of the pixels and configured to direct light emitted from the second portion of the pixels toward a second direction distinct from the first direction, and an optical barrier arranged between the first optical element and the second optical element effective to prevent light from propagating therebetween.

03-15-2012

20130163091

MULTIPLE BEAM COMBINER FOR LASER PROCESSING APPARATUS - Apparatus and methods for combining beams of amplified radiation are disclosed. A beam combiner has a collimating optic positioned to receive a plurality of coherent radiation beams at a constant angle of incidence with respect to an optical axis of the collimating optic. The respective angles of incidence may also be different in some embodiments. The collimating optic has an optical property that collimates the beams. The optical property may be refractive or reflective, or a combination thereof. A collecting optic may also be provided to direct the plurality of beams to the collimating optic. The beam combiner may be used in a thermal processing apparatus to combine more than two beams of coherent amplified radiation, such as lasers, into a single beam.

OPTICAL DEVICE WITH REDUCED POLARIZATION SENSITIVITY - Roughly described, an optical device has first and second waveguide segments which are constructed such that irradiation changes both average refractive index and also birefringence in the respective segment. The change in birefringence as a function of the change in average refractive index, is different for the two segments. Predetermined lengths of each of the two segments are irradiated. In an MZI, the technique can be used to adjust simultaneously for one or more of differential path length phase delays, coupler-induced phase errors, and frequency errors.

10-04-2012

20090122415

Display device - The present invention provides a display device having a large-area display region which is capable of performing an image display of high quality by making, even when two display panels abut on each other, an abutting portion becomes inconspicuous. Two optical path changing lenses LPL

05-14-2009

359640000

Including prismatic element

6

20140340761

BEAM-COMBINER FOR FIBER-DELIVERED LASER-BEAMS OF DIFFERENT WAVELENGTHS - A beam combiner for combining laser-beams of different colors along a common path includes a directing-prism for each of the laser-beams and one combining-prism. The directing-prisms are arranged to transmit the laser-beams to the combining-prism. The directing-prisms and the combining-prism are configured and arranged with respect to each other such that the directing-prism transmits the beams along the common path.

11-20-2014

20130308198

GLASS BLOCK DICHROIC BEAMSPLITTERS - A dichroic beamsplitter has a composite prism that has at least first and second prism elements that are coupled together along facing surfaces, wherein the respective facing surfaces of the first and second prism elements are equidistant from each other. The composite prism has a first flat external surface that lies within a first plane, a second flat external surface that lies within a second plane that is perpendicular to the first plane, a third flat external surface that lies within a third plane that is parallel to the second plane, and a coated surface internal to the composite prism and having a multilayer thin-film dichroic beamsplitter coating, wherein the coated surface lies within a fourth plane that intersects at least one of the first, second, and third planes at an angle that is less than about 25 degrees.

11-21-2013

20140313587

LIGHT REDIRECTING FILM AND DISPLAY SYSTEM INCORPORATING SAME - Light redirecting film is disclosed. The light redirecting film includes a first major surface that includes a plurality of first microstructures that extend along a first direction. The light redirecting film also includes a second major surface that is opposite to the first major surface and includes a plurality of second microstructures. The second major surface has an optical haze that is not greater than about 3% and an optical clarity that is not greater than about 85%. The light redirecting film has an average effective transmission that is not less than about 1.75.

10-23-2014

20130188261

SKYLIGHT SUNLIGHT REDIRECTOR - A skylight sunlight redirector is provided with ridges, grooves, and/or prisms that control light transmitted through the redirector as incident sunlight angle changes throughout the day.

07-25-2013

20140111867

LIGHT COMBINING SYSTEM - A light combining system is provided comprising: prisms comprising respective entrance faces enabled to receive respective on-state light from respective digital-micro-mirror devices (DMD). At least one interface between prisms is enabled to receive respective on-state light from the prisms. A mirror at the at least one interface is enabled to transmit first on-state light from a first prism through a second prism and reflect second on-state light from the second prism in alignment with the first on-state light back through the second prism. Respective angles formed by a normal of the mirror and each of the first on-state light and the second on-state light is less than a total internal reflection angle. A combination of respective back working distances of the DMDs and shapes of each of the prisms is chosen such that respective illumination paths and respective reflection paths of each of DMDs do not interfere with each other.

04-24-2014

20130128365

BEAM-COMBINER FOR FIBER-DELIVERED LASER-BEAMS OF DIFFERENT WAVELENGTHS - A beam combiner for combining laser-beams of different colors along a common path includes a directing-prism for each of the laser-beams and one combining-prism. The directing-prisms are arranged to transmit the laser-beams to the combining-prism. The directing-prisms and the combining-prism are configured and arranged with respect to each other such that the directing-prism transmits the beams along the common path.

05-23-2013

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